Each subject is expected to participate in this study for a period of four weeks or until reepithelialization, whichever occurs first. Subjects may participate for an additional period of four weeks or until reepithelialization, whichever occurs first: this it to be decided by the investigator and will be determined by the accessibility of the patient (physical location) and the suitability of the wound to further treatment. The maximum time period for the study is 8 weeks. The minimum time frame is at least 4 week, or until reepithelialization occurs.